package com.example.hasee.zhcd.Util;

import android.app.Activity;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;


import com.example.hasee.zhcd.R;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;


public class UpdateManager {

    private Context mContext;
    private Activity activity;
    private Dialog noticeDialog;

    private Dialog downloadDialog;
    private static final String savePath = Environment
            .getExternalStorageDirectory() + "/ZHDownload/";
    private static final String saveFileName = savePath + "ZHApp.apk";
    private ProgressBar mProgress;
    private TextView textView1;

    private static final int DOWN_UPDATE = 1;

    private static final int DOWN_OVER = 2;

    private int progress;

    private Thread downLoadThread;

    private boolean interceptFlag = false;
    private String apkUrl;

    private Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case DOWN_UPDATE:
                    mProgress.setProgress(progress);
                    if (progress == 99) {
                        textView1.setText("下载完成");
                        // positiveButton.setEnabled(true);
                    } else {
                        textView1.setText("已下载：" + progress + "%");
                    }
                    break;
                case DOWN_OVER:
                    installApk();
                    break;
                default:
                    break;
            }
        }

        ;
    };

    public UpdateManager(Context context) {
        this.mContext = context;
        this.activity = (Activity) context;
    }

    public void checkUpdateInfo(String apkUrl) {
        this.apkUrl = apkUrl;
        showNoticeDialog();
    }

    private void showNoticeDialog() {
        Builder builder = new Builder(mContext);
        builder.setTitle("软件版本更新");
        builder.setMessage("有最新的软件包哦，亲快下载吧~");
        builder.setPositiveButton("下载", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                showDownloadDialog();
            }
        });
        // builder.setNegativeButton("�Ժ���˵", new OnClickListener() {
        // @Override
        // public void onClick(DialogInterface dialog, int which) {
        //
        // Methods.startActivity(activity, LoginActivity.class, false);
        // activity.finish();
        //
        // dialog.dismiss();
        // }
        // });
        noticeDialog = builder.create();
        noticeDialog.show();
    }

    private void showDownloadDialog() {
        Builder builder = new Builder(mContext);
        builder.setTitle("软件版本更新");
        final LayoutInflater inflater = LayoutInflater.from(mContext);
        View v = inflater.inflate(R.layout.gk_down_progress, null);
        mProgress = (ProgressBar) v.findViewById(R.id.progress);
        textView1 = (TextView) v.findViewById(R.id.textViewm);
        builder.setView(v);
        builder.setNegativeButton("退出", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                interceptFlag = true;
                activity.finish();
            }
        });
        // builder.setPositiveButton("��װ", new OnClickListener() {
        // @Override
        // public void onClick(DialogInterface dialog, int which) {
        // Button positiveButton = ((AlertDialog)
        // dialog).getButton(AlertDialog.BUTTON_POSITIVE);
        // positiveButton.setEnabled(false);
        // // dialog.dismiss();
        // // interceptFlag = true;
        // // installApk();
        // }
        // });

        downloadDialog = builder.create();
        downloadDialog.setCancelable(false);
        downloadDialog.show();
        downloadApk();
    }

    private Runnable mdownApkRunnable = new Runnable() {
        @Override
        public void run() {
            try {
                URL url = new URL(apkUrl);
                HttpURLConnection conn = (HttpURLConnection) url
                        .openConnection();
                conn.connect();
                int length = conn.getContentLength();
                InputStream is = conn.getInputStream();

                File file = new File(savePath);
                if (!file.exists()) {
                    file.mkdir();
                }
                String apkFile = saveFileName;
                File ApkFile = new File(apkFile);
                FileOutputStream fos = new FileOutputStream(ApkFile);

                int count = 0;
                byte buf[] = new byte[1024];

                do {
                    int numread = is.read(buf);
                    count += numread;
                    progress = (int) (((float) count / length) * 100);
                    mHandler.sendEmptyMessage(DOWN_UPDATE);
                    if (numread <= 0) {
                        mHandler.sendEmptyMessage(DOWN_OVER);
                        break;
                    }
                    fos.write(buf, 0, numread);
                } while (!interceptFlag);

                fos.close();
                is.close();
                // Methods.startActivity(activity, LoginActivity.class, false);
                activity.finish();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
    };


    private void downloadApk() {
        downLoadThread = new Thread(mdownApkRunnable);
        downLoadThread.start();
    }

    private void installApk() {
        File apkfile = new File(saveFileName);
        if (!apkfile.exists()) {
            return;
        }
        Intent i = new Intent(Intent.ACTION_VIEW);
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        i.setDataAndType(Uri.parse("file://" + apkfile.toString()), "application/vnd.android.package-archive");
        mContext.startActivity(i);
        android.os.Process.killProcess(android.os.Process.myPid());
    }
}
